Bush Appointee Was Key Voice in Brokering Consensus on Bond Buying

WASHINGTON—Federal Reserve Governor Elizabeth Duke plans to leave the central bank at the end of next month, ending a five-year tenure that included unorthodox new programs to resuscitate the economy following a severe financial crisis and recession.

Ms. Duke, who submitted her resignation to President Barack Obama on Thursday, said in an interview that her departure coincides with the Fed's completion of new rules requiring the nation's biggest banks to set aside more capital as protection against future financial crises....